From eebfd5ea79348b19fdd0c3010735580991c3cdd1 Mon Sep 17 00:00:00 2001
From: Ruben Pollan <meskio@sindominio.net>
Date: Mon, 12 Sep 2016 22:30:50 +0200
Subject: [feat] Write service tokens to a file for email clients to read.

- Resolves: #8435
---
 docs/next-changelog.rst                |  3 ++-
 src/leap/bitmask/core/mail_services.py | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/docs/next-changelog.rst b/docs/next-changelog.rst
index a0f048b4..bac463b6 100644
--- a/docs/next-changelog.rst
+++ b/docs/next-changelog.rst
@@ -12,7 +12,8 @@ Features
 ~~~~~~~~
 - `#7965 <https://leap.se/code/issues/7965>`_: Add basic keymanagement to the cli.
 - `#8265 <https://leap.se/code/issues/8265>`_: Add a REST API and bitmask.js library for it.
-- `#8400 <https://leap.se/code/issues/8265>`_: Add manual provider registration.
+- `#8400 <https://leap.se/code/issues/8400>`_: Add manual provider registration.
+- `#8435 <https://leap.se/code/issues/8435>`_: Write service tokens to a file for email clients to read.
 - Use mail_auth token in the core instead of imap/smtp tokens.
 
 - `#1234 <https://leap.se/code/issues/1234>`_: Description of the new feature corresponding with issue #1234.
diff --git a/src/leap/bitmask/core/mail_services.py b/src/leap/bitmask/core/mail_services.py
index 79c1495e..ea53ee07 100644
--- a/src/leap/bitmask/core/mail_services.py
+++ b/src/leap/bitmask/core/mail_services.py
@@ -22,6 +22,8 @@ This should be moved to the different packages when it stabilizes.
 """
 import json
 import os
+import shutil
+import tempfile
 from collections import defaultdict
 from collections import namedtuple
 
@@ -440,9 +442,11 @@ class StandardMailService(service.MultiService, HookableService):
         def registerToken(token):
             self._service_tokens[userid] = token
             self._active_user = userid
+            return token
 
         d = soledad.get_or_create_service_token('mail_auth')
         d.addCallback(registerToken)
+        d.addCallback(self._write_tokens_file, userid)
         return d
 
     def stopInstance(self):
@@ -485,6 +489,22 @@ class StandardMailService(service.MultiService, HookableService):
     def get_keymanager_session(self, userid):
         return self._keymanager_sessions.get(userid)
 
+    def _write_tokens_file(self, token, userid):
+        tokens_folder = os.path.join(tempfile.gettempdir(), "bitmask_tokens")
+        if os.path.exists(tokens_folder):
+            try:
+                shutil.rmtree(tokens_folder)
+            except OSError as e:
+                log.msg("Can't remove tokens folder %s: %s"
+                        % (tokens_folder, e))
+                return
+        os.mkdir(tokens_folder, 0700)
+
+        tokens_path = os.path.join(tokens_folder,
+                                   "%s.json" % (userid,))
+        with open(tokens_path, 'w') as ftokens:
+            json.dump(self._service_tokens, ftokens)
+
 
 class IMAPService(service.Service):
 
-- 
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